Double Ring Firepit Burner is hand crafted from 100%, 304 Stainless Steel. Fire Pit Ring is to be used ONLY in an outdoor fire pit using natural gas or propane. When using a fire pit ring with Propane you will need to use an air mixer to allow oxygen to blend with the gas. Stop by one of our showrooms today to determine the best fit for your application. Available in 12", 18" and 24" diameter.